Update OCMock to 3.1.5

third_party/ocmock/OCMock/NSMethodSignature+OCMAdditions.h

-//---------------------------------------------------------------------------------------
-//  $Id$
-//  Copyright (c) 2009 by Mulle Kybernetik. See License file for details.
-//---------------------------------------------------------------------------------------
+/*
+ *  Copyright (c) 2009-2015 Erik Doernenburg and contributors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use these files except in compliance with the License. You may obtain
+ *  a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ *  License for the specific language governing permissions and limitations
+ *  under the License.
+ */
 
 #import <Foundation/Foundation.h>
 
 @interface NSMethodSignature(PrivateAPI)
 
 + (id)signatureWithObjCTypes:(const char *)types;
 
 @end
 
 @interface NSMethodSignature(OCMAdditions)
 
-- (const char *)methodReturnTypeWithoutQualifiers;
+- (BOOL)usesSpecialStructureReturn;
+- (NSString *)fullTypeString;
+- (const char *)fullObjCTypes;
 
 @end